SOLUTION: Two marbles are to be picked at random from a box containing only red and black marbles. What is the probability that both are red? Statement 1: The probability of the firs

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Question 1090078: Two marbles are to be picked at random from a box containing only red and black marbles. What is the probability that both are red?
Statement 1: The probability of the first marble being black is 1/3.
Statement 2: There are 24 red marbles in the box.
Which of the statements above make it possible to answer the question?

Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Statement 1.
If you know that the probability of first marble being black, you know that the probability of first marble being red since there are only red or black marbles.
P%28R%29=1-1%2F3=2%2F3